Spectroscopy system

radiation detection

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Alternative Title:
pulse-height spectrometry

Figure 15: Resonance-ionization mass spectroscopy system. The selectivity and sensitivity of RIS make it possible to sort out and count a small number of noble gas atoms, such as krypton-81, in this device that works much like the sorting demon visualized by James Clerk Maxwell (see text).

By permission of Oak Ridge National Laboratory, managed by Martin Marietta Energy Systems, Inc., for the U.S. Department of Energy under Contract No. DE-AC05-840R21400

pulse-mode detection systems

The pulse-mode counting systems described above provide no detailed information on the amplitude of the pulses that are accepted. In many types of detectors, the charge
Q and thus the amplitude of the signal pulse is proportional to the energy deposited by the incident radiation. Therefore, an important set of measurement systems are based on recording not only the number of pulses but...